54840129 has 8 divisors (see below), whose sum is σ = 73193952. Its totient is φ = 36523200.

The previous prime is 54840091. The next prime is 54840133. The reversal of 54840129 is 92104845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54840129 - 2¹⁹ = 54315841 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 54840129.

It is not an unprimeable number, because it can be changed into a prime (54840229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5544 + ... + 11849.

It is an arithmetic number, because the mean of its divisors is an integer number (9149244).

Almost surely, 2^54840129 is an apocalyptic number.

It is an amenable number.

54840129 is a deficient number, since it is larger than the sum of its proper divisors (18353823).

54840129 is a wasteful number, since it uses less digits than its factorization.

54840129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18447.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 54840129 is about 7405.4121424807. The cubic root of 54840129 is about 379.9264146526.

The spelling of 54840129 in words is "fifty-four million, eight hundred forty thousand, one hundred twenty-nine".